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Development of a Perchlorate Chemical Sensor Based on Magnetic Nanoparticles and Silicon Nitride Capacitive Transducer
Electroanalysis ( IF 2.7 ) Pub Date : 2018-02-14 , DOI: 10.1002/elan.201700824 Najib Ben Messaoud 1, 2 , Abdoullatif Baraket 3 , Cherif Dridi 1 , Naglaa. M. Nooredeen 4 , Mohammed Nooredeen Abbas 5 , Joan Bausells 6 , Angelos Streklas 6 , Abdelhamid Elaissari 7, 8 , Abdelhamid Errachid 3
Electroanalysis ( IF 2.7 ) Pub Date : 2018-02-14 , DOI: 10.1002/elan.201700824 Najib Ben Messaoud 1, 2 , Abdoullatif Baraket 3 , Cherif Dridi 1 , Naglaa. M. Nooredeen 4 , Mohammed Nooredeen Abbas 5 , Joan Bausells 6 , Angelos Streklas 6 , Abdelhamid Elaissari 7, 8 , Abdelhamid Errachid 3
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We report in this work the development of a novel capacitance electrochemical sensors based on silicon nitride substrate (Si3N4) chemically modified with a structure of Cobalt phthalocyanine, C,C,C,C‐tetracarboxylic acid‐Polyacrylamide (Co(II)Pc‐PAA). This sensitive layer was tested with and without magnetic nanoparticles (MNP) for perchlorate (
) detection. The developed chemical sensor with Si3N4/APTES‐MNP/Co(II)Pc‐PAA structure has shown a better performance when compared to the other structure based on Si3N4/Co(II)Pc‐PAA. Contact angle measurements (CAM) and atomic force microscopy (AFM) characterizations have been performed to characterize the functionalization of the chemical sensors surface. Under the optimized structure of the chemical sensor, electrochemical measurements were carried out using Mott‐Schottky analysis for 
detection within the large range of 10−10 to 10−4 M with a very low detection limit of 2×10−10 M. The chemical sensor has demonstrated a high selectivity toward 
when compared to other interfering anions such as Cl−, SO42−, and CO32−. The present capacitive chemical sensor is very promising for sensitive and rapid detection of 
for environmental applications.
中文翻译：
基于磁性纳米粒子和氮化硅电容传感器的高氯酸盐化学传感器的研制
我们在这项工作中报告了基于氮化硅衬底（Si 3 N 4）的化学修饰的新型电容式电化学传感器的开发，该化学修饰具有酞菁钴，C，C，C，C-四羧酸-聚丙烯酰胺（Co（II） PC-PAA）。在有或没有磁性纳米颗粒（MNP）的情况下测试了此敏感层的高氯酸盐（
）检测。与基于Si 3 N 4的其他结构相比，具有Si 3 N 4 / APTES‐MNP / Co（II）Pc‐PAA结构的已开发化学传感器具有更好的性能/ Co（II）Pc-PAA。已经进行了接触角测量（CAM）和原子力显微镜（AFM）表征，以表征化学传感器表面的功能。在化学传感器的优化结构下，使用Mott-Schottky分析进行电化学测量，以在10 -10至10 -4 M的大范围内进行检测，而检测限仅为2×10 -10M 。传感器已证明朝向高选择性相比其他干扰阴离子如Cl -，SO 4 2-，以及CO 3 2-。当前的电容性化学传感器对于环境应用的灵敏和快速检测是非常有前途的。
更新日期：2018-02-14
) detection. The developed chemical sensor with Si3N4/APTES‐MNP/Co(II)Pc‐PAA structure has shown a better performance when compared to the other structure based on Si3N4/Co(II)Pc‐PAA. Contact angle measurements (CAM) and atomic force microscopy (AFM) characterizations have been performed to characterize the functionalization of the chemical sensors surface. Under the optimized structure of the chemical sensor, electrochemical measurements were carried out using Mott‐Schottky analysis for detection within the large range of 10−10 to 10−4 M with a very low detection limit of 2×10−10 M. The chemical sensor has demonstrated a high selectivity toward when compared to other interfering anions such as Cl−, SO42−, and CO32−. The present capacitive chemical sensor is very promising for sensitive and rapid detection of for environmental applications.
中文翻译：
基于磁性纳米粒子和氮化硅电容传感器的高氯酸盐化学传感器的研制
我们在这项工作中报告了基于氮化硅衬底（Si 3 N 4）的化学修饰的新型电容式电化学传感器的开发，该化学修饰具有酞菁钴，C，C，C，C-四羧酸-聚丙烯酰胺（Co（II） PC-PAA）。在有或没有磁性纳米颗粒（MNP）的情况下测试了此敏感层的高氯酸盐（
）检测。与基于Si 3 N 4的其他结构相比，具有Si 3 N 4 / APTES‐MNP / Co（II）Pc‐PAA结构的已开发化学传感器具有更好的性能/ Co（II）Pc-PAA。已经进行了接触角测量（CAM）和原子力显微镜（AFM）表征，以表征化学传感器表面的功能。在化学传感器的优化结构下，使用Mott-Schottky分析进行电化学测量，以在10 -10至10 -4 M的大范围内进行检测，而检测限仅为2×10 -10M 。传感器已证明朝向高选择性相比其他干扰阴离子如Cl -，SO 4 2-，以及CO 3 2-。当前的电容性化学传感器对于环境应用的灵敏和快速检测是非常有前途的。
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